hg: jdk9/hs/hotspot: 8169551: Segfaults in error traces when module version is null

[harold.seigel at oracle.com]

Changeset: 7c695e0b87d0
Author:    hseigel
Date:      2016-11-15 08:34 -0500
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/7c695e0b87d0

8169551: Segfaults in error traces when module version is null
Summary: Make sure module->version() is not null before dereferencing it.
Reviewed-by: coleenp, gtriantafill, lfoltan

! src/share/vm/runtime/frame.cpp